629  
FZUS53 KLOT 082021  
SRFLOT  
 
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES  
NATIONAL WEATHER SERVICE CHICAGO IL  
321 PM CDT FRI AUG 8 2025  
 
ILZ006-090930-  
LAKE-  
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK  
321 PM CDT FRI AUG 8 2025  
   
REST OF TODAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........74-78.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER 90S.  
WINDS.......................SOUTH WINDS 15 TO 20 MPH WITH GUSTS UP  
TO 30 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................PARTLY CLOUDY.  
LOW TEMPERATURE.............IN THE MID 70S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH WITH GUSTS UP  
TO 25 MPH.  
   
SATURDAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE LOWER TO MID 90S.  
WINDS.......................SOUTH WINDS 10 TO 20 MPH WITH GUSTS UP  
TO 30 MPH.  
   
SWIM RISK OUTLOOK
 
   
SATURDAY NIGHT
 
MODERATE SWIM RISK*.    
SUNDAY
 
LOW SWIM RISK*.    
SUNDAY NIGHT
 
LOW SWIM RISK*.    
MONDAY
 
LOW SWIM RISK*.    
MONDAY NIGHT
 
LOW SWIM RISK*.    
TUESDAY
 
LOW SWIM RISK*.  
 

 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 

 
 
ILZ103-104-090930-  
NORTHERN COOK-CENTRAL COOK-  
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT  
321 PM CDT FRI AUG 8 2025  
   
REST OF TODAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........75-79.  
WEATHER.....................MOSTLY SUNNY.  
HIGH TEMPERATURE............IN THE LOWER 90S.  
WINDS.......................SOUTH WINDS 15 TO 20 MPH WITH GUSTS UP  
TO 30 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE MID 70S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH WITH GUSTS UP  
TO 25 MPH.  
   
SATURDAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY  
CLOUDY.  
HIGH TEMPERATURE............IN THE MID 90S.  
WINDS.......................SOUTH WINDS 10 TO 20 MPH WITH GUSTS UP  
TO 30 MPH.  
   
SWIM RISK OUTLOOK
 
   
SATURDAY NIGHT
 
LOW SWIM RISK*.    
SUNDAY
 
LOW SWIM RISK*.    
SUNDAY NIGHT
 
LOW SWIM RISK*.    
MONDAY
 
LOW SWIM RISK*.    
MONDAY NIGHT
 
LOW SWIM RISK*.    
TUESDAY
 
LOW SWIM RISK*.  
 

 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 

 
 
INZ001-090930-  
LAKE-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
321 PM CDT FRI AUG 8 2025  
   
REST OF TODAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WATER TEMPERATURE...........72-76.  
WEATHER.....................MOSTLY SUNNY.  
HIGH TEMPERATURE............IN THE LOWER 90S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH WITH GUSTS UP  
TO 25 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE MID 70S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH.  
   
SATURDAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................MOSTLY SUNNY.  
HIGH TEMPERATURE............IN THE LOWER TO MID 90S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH WITH GUSTS UP  
TO 25 MPH.  
   
SWIM RISK OUTLOOK
 
   
SATURDAY NIGHT
 
LOW SWIM RISK*.    
SUNDAY
 
LOW SWIM RISK*.    
SUNDAY NIGHT
 
LOW SWIM RISK*.    
MONDAY
 
LOW SWIM RISK*.    
MONDAY NIGHT
 
LOW SWIM RISK*.    
TUESDAY
 
LOW SWIM RISK*.  
 

 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 

 
 
INZ002-090930-  
PORTER-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
321 PM CDT FRI AUG 8 2025  
   
REST OF TODAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WATER TEMPERATURE...........72-76.  
WEATHER.....................MOSTLY SUNNY.  
HIGH TEMPERATURE............IN THE UPPER 80S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................MOSTLY CLEAR.  
LOW TEMPERATURE.............IN THE MID 70S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH.  
   
SATURDAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................MOSTLY SUNNY.  
HIGH TEMPERATURE............IN THE LOWER TO MID 90S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH WITH GUSTS UP  
TO 25 MPH.  
   
SWIM RISK OUTLOOK
 
   
SATURDAY NIGHT
 
LOW SWIM RISK*.    
SUNDAY
 
LOW SWIM RISK*.    
SUNDAY NIGHT
 
LOW SWIM RISK*.    
MONDAY
 
LOW SWIM RISK*.    
MONDAY NIGHT
 
LOW SWIM RISK*.    
TUESDAY
 
LOW SWIM RISK*.  
 

 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 

 
 
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